What Is PNG to WebP Conversion?

PNG is lossless and great for graphics, but its files can be heavy. WebP delivers the same crispness and transparency at far smaller sizes — often 25–35% lighter than PNG. Converting PNG to WebP keeps your transparent graphics intact while making them load much faster on the web.

100% private: every image is converted right inside your browser using the Canvas API. Your files are never uploaded to a server.

Common Use Cases

Faster Loading

Serve transparent graphics that load quickly on every page.

Keep Transparency

Full alpha transparency survives the conversion.

Optimize Assets

Batch-convert icon sets and UI graphics to lean WebP.

How to Convert PNG to WebP

1

Add Your PNG Files

Drag and drop your PNG images onto the upload zone, or click to browse. You can add up to 20 files at once.

2

Set the Quality

Move the quality slider (10–100) to balance WebP file size against visual sharpness. The default of 85 suits most images.

3

Automatic Conversion

Conversion starts the moment your files are added — no extra button to press. Each PNG image is rendered to WebP in your browser.

4

Download Your WebP Files

Save each WebP file individually, or click Download All (ZIP) to grab the whole batch in one archive.

Features & Format Details

WebP supports both lossless and lossy modes and, crucially, full alpha transparency — so it's a true upgrade path for PNG on the web. You keep transparent edges while shedding a big chunk of the file size.

PNG vs WebP: Quick Comparison

Aspect	PNG	WebP
Full Name	Portable Network Graphics	WebP
Compression	Lossless	Lossy or lossless
Transparency	Yes (alpha channel)	Yes (alpha channel)
Best For	Logos, graphics, screenshots	Web images, smaller than JPG/PNG

Why Use This Converter

Private & Secure

All processing happens locally in your browser. Sensitive images never leave your device.

No Sign-Up, No Limits

Free to use with no account, no watermarks, and no daily caps on the number of conversions.

Batch & ZIP Export

Convert up to 20 images in one go and download them together as a single ZIP archive.

Batch ready: drop up to 20 images at once, then download them one by one or grab everything in a single ZIP.

Frequently Asked Questions

Will my transparent PNG stay transparent as WebP?

Yes. WebP supports a full alpha channel, so transparency is preserved exactly. This is one of WebP's biggest advantages over JPG, which would fill transparent areas with white.

Are my images uploaded to a server?

No. Conversion runs entirely in your browser with the Canvas API, so your PNG files are never sent anywhere. This makes the tool safe even for private or confidential images.

How many files can I convert at once?

You can add up to 20 images at a time. After conversion you can download each WebP file separately or all of them together as a ZIP archive.

Is this converter really free?

Yes. It is completely free with no account required, no watermarks added to your images, and no limit on how many conversions you can do.